Torch



sept. 21,1926. 1,600,713 5 W. C. BUTTNER TORCH Filed July 31, 1924 Patented Sept. 2l, 1926. f

l yi ING-COMPANY, foricrrrcaeo, ILLINOIS, fa coaro'rmrioia for( ILLINOIS. y"

VTora-eier.

l 'This "invention relates ito a'novel and improved torchparticiilarlyadapted for use :lead-burning, soldering, brazing, etc., and

, fiirther object is'to provide a torch-in "hichthe valveslcoiitrolling the flow.` of

lbf f 'A ifurther obj`ectisfto-provide altorchihav- "ing'means ,for obtaining'abettermixture-V obj to.: provide 4 torch Vhavirfg,"meansy tofprevent the escape of inflammable'Ega's therefrom.

urth'er lobjectswill become app'arent` durk f "ifng tlievprogressofithe description.

"iication, I have shown `a` seleeted vembodiment effjgheiniventingafnd referring tliereto--- f" Fig. 1 elevation of improved a Suitable-body having )a "100m2 bemin foe the passage of an iifl'ahimable'gas.,v As

sho-Wn, this rbore extends:perpendicularly in' the body 'from 4rtherearf'end.B thereof, and the forward end of the bore 2 is enlarged to receive a screw-threaded needle valve 4. The stem of the needle valve immediately vabove the screw-threaded portion is'recessed to receive a horse-shoe collar 5, or the like. Surrounding the stem 6 of the needle valve is suitable packing 7 held in place by a cap 8 screw-threadedv on to the extension 9 of the body. It willthus be evident that upon continued turningfof the stem 6 to withdraw it from the body, the collar 5 will come in contact with the packing'7 andprevent ref moval of the stem. v

A bore 10 is provided extending at an angle to the bore 2 and communicating therewith, whereby the inflammable' gas may pass to the mixing throat 11. The mixing throat is formed in a member 12 which may be screw-threaded into the body'l as shown, and this member 12 is pro-vided with a pipe 13 having asuitable tip 14. f

Adjacent the inner end of the mixing throat 11 I provide'a recess 15 in the body V1. This'recess isrr preferably of the form shown, having a cone with an aperture 19 Vnoted that 1han is customarilyhad in ardevice of this l* cfhjaracter..` HTA :further to above as \beingdirj ture 19.. Thisaperture I sli-allrefer; toghe're after as the jet hole, as fit Aisadalptd:to fformf a jet? of oxygen orcomfpressed-air.; The flo-w fof oxygen o'ijcompressed airis controlled 'by la needle valye21., Itfmay be nQted-.attliis Atime' thatfboth the n eedleyalves and Qlare j 'provided `with-'suitablehandles .22qanol 23 @tion to :be easily passing` through i apex `,ltliere'i'f,` and directedvintothe mixing, throat; *.Itw'ill'be this recess 15 and terminatesthei-ein.' g

To supply` oxygen -'orf "compressed air 'ltotheftorgch,V I provide abore f1.6 itli'e body the -bore 10fcommu`nicates- With k1 communicatinggwith ayboref17" terminate inggin la recessfl,` and @from therecess .518

Y the 'oxygen or compressed airgmaiywpfassi through the z tperture1179` in the apex ofthe seen that this aperturez'el-S:isgthe-onereferred cte'd "towardqanfd into the mixing throat 11'.; Therecess 1 8fprefer1" ably extends vthrough-the rear Yend of fthe body and mayibe closed by a :removable-plug 65.: cone-shaped wall-ofthelrecessll @Itf'will be ,20. I :By l,this means readyyaccessmay be khad 'y 5to tlie recess18f1in order to cleantheaper Y j In the drawingsaccompanyingfthis. speciextending 'in frontof the 'bodyfan'd inv a-p'osilmanipulated yby as,f'person i hold/ingithetorchiin pnejLhand.

The rear'cnd of thebody 1 with suitable extensions 24C having passages therethrough communicating with the bores 2 and 16 respectively. These extensions are of such a length as to furnish a suitable means for claspingthe entire torch in one hand, and'whenso claspedythe needle valves are easily reached with the other hand ,for manipulation as j ust pointed out. The rear 'ends vof the extensions 24-rec'eive the inlet nipples '25 and 26 for the supply of gas and oxygen or j compressed airrespectively. These nipples may be threaded Vinto the exf tensions 24 and joining the rear'end of the l extensions is a cross-piece 27v which kacts as l a strengthening piece for the extensionsv and therefore formsa rigid handle. Suitable' liose27 Vmay be received ongthe'nipples 25v and 26 and extend to suitable sources of gas and compressed air or the like- In operation,oxygeii or vcompressed air is admitted through bores 16 and 17 to the recess 18, whence it passes through the jet hole 19 inea jet, passing into thev mixing throatr 11 at high velocity..l It should be noted that thebores 1 6 and 17 are of prov gressively less 4cross-sectional area and thatk get results in a siphon action yon the gas to i `induce a better flowV thereof, and furthermore by injecting ajet of oxygen into they u streamof gas a much better mixture is obtained."V The recess thus constitutes a siphon chamber in which the inflammable gasis introduced` at thefside 'and the oxygen or fT-throat' 11, whereby the oxygen or com# l Y pressed air c'arriesthe inflammable gas for- 1 ing is completed forV combustion.

compressed air vis introducedA at highve-` locity` throughthe jet hole'attheback and `in alignment with the elongated mixing .ward intofthe mixing throat where the mix- While I have referred to the supplyof oxygenyor' compressed air, lfor simplicity 'of'expressiom I willrefer to thisgas as.

'oxygen throughout the claims, it being understood that by that termis meant any gas which contains oxygen, and which will support the vcombustion of the inflammable gas.

`,Fromfthe above, vit wi'llfbe apparellt that I have provided afn'ovelgandV improved torch which-` is extremely compact and can be made extremely-light in weight; Vwhich canv 'be readily held in thehand.; wherein the f valves controlling the flow ofgases are eas.

V'ilymanipulated by aperson holding the @torch in one hand;- and wherein there islno danger of escape yof inflammable gas due to f displacement 'of the valve controlling its rflow; and vwhereinv va thorough Ymixture is fassured. Y H v I am aware that changes in the form, construction and arrangement of lparts may be made withoutdeparting from the spirit and without sacrificing the advantages of the invention and Ireserve the right'to make all such changes as fairly fall within the scope of the following claims:

I claimy 1. A torch comprising a bodyvhaving a siphon chamber therein, a mixing throat connecting to said` chamber at the ,front thereof, a valved gas passageinlsaidfbody connected to the sideof said siphon chamber, a recess in the body back `of `the siphon chamber, a valved oxygen passage connectedV tc said recess, said passages being ldisposed.

.on either side of said Vchamber,'and a jetV hole connecting Vthe recessfwith thejsiphonv Y vChamber @and arranged in alignment withy the Vmixing throat said siphon chamber being located in the'. body between saidjvpas#y sages.

siphon chamber therein, a mixing throat connecting to said chamber at fthe Jfront body connected to. the side Vofsa'idfsiphon chamber, a valve at the front of the body engaging said gas passage at the angle therein, a recess inl the bodyv back of the siphon chamber, an angularloxygen passage in they side of the body opposite thergas passage and connected to said recess,"a valve at the front of the body engaging said oxylgen passage at the angle therein, and a jet.vv hole connecting the recess with the Siphon" chamber and arranged in alignment with the mixing throat.

WILLIAM cant BUTTNER.

2. A Ytorch* comprisingv a` body khaving a Y,

65,' thereof, a Yright angle gas passage in rsaid 

